Power_Man Posted June 25, 2016 Report Share Posted June 25, 2016 Same pipes Cub has 39pwk, K&N style pod filter. serval has 35pwk with notoil filter. Both running shearer in frames. Should their jetting be pretty close, or is that a pretty odd spread? Cub has 183 Serval has 168 Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted June 26, 2016 Report Share Posted June 26, 2016 They should be nearly identical. Are those both regular PWK or is one set Airstrikers? The Serval is spot on or maybe a little bit rich. That Cub jetting is fucky. Quote Link to comment Share on other sites More sharing options...
rjdgriff Posted June 26, 2016 Report Share Posted June 26, 2016 168 sounds rich to me Trail Bikes, FTW Quote Link to comment Share on other sites More sharing options...
Power_Man Posted June 26, 2016 Author Report Share Posted June 26, 2016 They should be nearly identical. Are those both regular PWK or is one set Airstrikers? The Serval is spot on or maybe a little bit rich. That Cub jetting is fucky. How do I tell the difference between air strikers and regular? They look identical to the serval PWK's. Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted June 26, 2016 Report Share Posted June 26, 2016 I've had ported Cubs jet into the 180's a few times , mostly mid 160 to mid 170 but I've def chopped a few into the 180s Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted June 26, 2016 Report Share Posted June 26, 2016 Airstrikers will have more vent hoses running off them. Got pics? Quote Link to comment Share on other sites More sharing options...
Nightmare Posted June 26, 2016 Report Share Posted June 26, 2016 And they have lil fins in the filter end of the carb. Sent from my LG-H811 using Tapatalk Quote Link to comment Share on other sites More sharing options...
special06shee Posted June 26, 2016 Report Share Posted June 26, 2016 Both same stroke motors? Quote Link to comment Share on other sites More sharing options...
Power_Man Posted June 27, 2016 Author Report Share Posted June 27, 2016 Both same stroke motors?Yup, 4 mill 421. The cub supposedly has case match porting Airstrikers will have more vent hoses running off them. Got pics? Quote Link to comment Share on other sites More sharing options...
special06shee Posted June 27, 2016 Report Share Posted June 27, 2016 Those are pwks. Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted June 27, 2016 Report Share Posted June 27, 2016 Watch with those hose clamps on the intake I've see them wear boots, most intakes spec the thinner style Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted June 27, 2016 Report Share Posted June 27, 2016 I think something is going on with the bike with 180s. In 13+ years of running PWK I've never had 180s in anything. Quote Link to comment Share on other sites More sharing options...
Power_Man Posted June 28, 2016 Author Report Share Posted June 28, 2016 Watch with those hose clamps on the intake I've see them wear boots, most intakes spec the thinner style they did come with smaller clamps, but i found them cutting up the intake. maybe i tighten too much? I think something is going on with the bike with 180s. In 13+ years of running PWK I've never had 180s in anything. Any ideas sir? i think ill do a leak down on it again to double check no leaks. but if it has no leaks? Quote Link to comment Share on other sites More sharing options...
lms1977 Posted June 28, 2016 Report Share Posted June 28, 2016 what do your plugs look like post a pic. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted June 28, 2016 Report Share Posted June 28, 2016 I'd do a leak down. I bet you're compensating with extra fuel. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.